Vibration Modeling of Multilayer Composite Structures with Viscoelastic Layers

Abstract

This work deals with the vibration of orthotropic multilayer sandwich structures with viscoelastic core. A finite element model is derived from a classical zigzag model with shear deformation in the viscoelastic layer. The aim of the present work is to establish numerical models and develop numerical tools to design multilayer composites structures with high damping properties. To fulfill this purpose, a finite element model has been developed for vibration analysis of a sandwich plate (elastic orthotropic)/(viscoelastic orthotropic)/(elastic orthotropic). A numerical study from the variation of the damping properties of the structures was performed according to the faces materials fibers orientation.

Optimal design of frequency dependent three-layered rectangular composite beams for low mass and high damping

“…In addition to that, taking into account the influence of the temperature on the damping characteristics can be more realistic for real world applications. Finally, based on the recent work of [39], more complex models of composite multi-layered beams with I, T or Box cross-sectional shapes and n angle ply laminated structures with visco-elastic interleaves could be an interesting illustration of the efficiency of the present optimal design approach. …”

Mixed integer multi-objective optimization of composite structures with frequency-dependent interleaved viscoelastic damping layers

“…Three dimensional solid elements were used to model the viscoelastic material (VEM) and shell elements to discretize the elastic layers in their study. Akoussan et al [13] elaborated a model for multilayered laminated viscoelastic sandwich plates and proposed a new solution procedure to perform parametric studies of damping characteristics of these structures. Zhang et al [14] developed a detailed 3D finite element model for predicting the modal loss factor of laminated composite beams with integral viscoelastic layers.…”

Influence of geometric and material parameters on the damping properties of multilayer structures

“…[7,8]. Also, when the viscoelastic faces of sandwich structures are made of laminates, the resulting damping properties are linked to the fiber orientation angles [7,9]. In the related literature, there have been several studies dedicated to the calculation of the damping properties of viscoelastic sandwich structures.…”